Results 101 to 110 of about 7,031 (227)
Imidazolo [1,2-a] e 1,2,4-triazolo[4,3-a] chinossaline analoghe degli antifolici metotrexato e trimetrexato [PDF]
, 2002 Abbiamo progettato una nuova serie di chinossaline, nelle quali l’anello pirrolico è stato sostituito con un’anello imidazolico o con uno triazolico lasciando nelle posizioni 2, 5, 6, 7 e 8 dell’anello chinossalinico gli stessi sostituenti ...
Corona, Paola +5 more
core
A perspective on using experiment and theory to identify design principles in dye-sensitized solar cells [PDF]
, 2018 Dye-sensitized solar cells (DSCs) have been the subject of wide-ranging studies for many years because of their potential for large-scale manufacturing using roll-to-roll processing allied to their use of earth abundant raw materials.
Abuabara SG +18 more
core +4 more sources
SynOpen, 2018 Molybdenum(VI)-catalyzed domino reductive cyclization of nitroarenes has been devised for the syntheses of 1,4-benzoxazines and 1,4-benzothiazines in the presence of pinacol as deoxygenating agent.
Raghuram Gujjarappa +6 more
doaj +1 more source
Small Science, Volume 6, Issue 5, May 2026.Contrary to long‐held expectations of on‐surface chemistry, tetraphenyl‐substituted tetraazapyrene undergoes selective pyrrole cyclization and C–C coupling on Au(111), forming a distinctive N‐doped nanographene consisting of fused tetraazadiindenopyrene and phenanthrene cores with embedded pyridinic and graphitic nitrogen.
Isabelle Kolly +7 more
wiley +1 more source
, 2023 Quinoxalines are a group of antibiotics widely used in medicine to fight bacterial infections.These antibiotics have a broad spectrum of action and belong to the class of 4 quinolones. Theirmechanism of action is based on inhibiting the activity of bacterial enzymes responsible for DNAsynthesis, which leads to their death. Due to this, quinoxalines are
openaire +1 more source
Preparation of atomic oxygen resistant polymeric materials [PDF]
Polyphenyl quinoxalines (PPQs) are an important family of high performance polymers that offer good chemical and thermal stability coupled with excellent mechanical properties.
Connell, J. W. +2 more
core +1 more source
Ni@Zeolite-Y Nano-Porous: Preparation and Application as a High Efficient Catalyst for Facile Synthesis of Quinoxaline, Pyridopyrazine, and Indoloquinoxaline Derivatives [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2019 In this research, by a simple and modified method, nanoporous of Ni(II) ion loaded Y-type zeolite (NNZ) was designed and applied as a novel highly efficient catalyst for the synthesis of quinoxalines, pyrido[2,3-b]pyrazines, and indolo[2,3-b]quinoxalines
Mehdi Kalhor, Zahra Seyedzade
doaj
Beilstein Journal of Organic Chemistry, 2012 The asymmetric organocatalytic hydrogenation of benzoxazines, quinolines, quinoxalines and 3H-indoles in continuous-flow microreactors has been developed.
Magnus Rueping +2 more
doaj +1 more source
An Efficient and Recyclable Nanoparticle-Supported Cobalt Catalyst for Quinoxaline Synthesis
Molecules, 2015 The syntheses of quinoxalines derived from 1,2-diamine and 1,2-dicarbonyl compounds under mild reaction conditions was carried out using a nanoparticle-supported cobalt catalyst.
Fatemeh Rajabi +2 more
doaj +1 more source
Silyl Rearrangements in Gold‐Catalyzed Transformations
European Journal of Organic Chemistry, Volume 29, Issue 15, 22 April 2026.The synergy between the exceptional ability of gold catalysts to activate unsaturated substrates and the inherent tendency of organosilicon reagents to undergo silyl‐group rearrangements has unlocked a range of novel transformations, enabling access to otherwise challenging molecular architectures.
Patricia García‐Martínez +1 more
wiley +1 more source